From: Mark Lord <kernel@teksavvy.com>
To: Tejun Heo <tj@kernel.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>,
linux-ide@vger.kernel.org, lkml <linux-kernel@vger.kernel.org>,
linux-scsi@vger.kernel.org
Subject: Re: NEC ND-4550A problems reading DVD-R
Date: Tue, 01 Mar 2011 08:48:26 -0500 [thread overview]
Message-ID: <4D6CF92A.4020105@teksavvy.com> (raw)
In-Reply-To: <20110301080153.GA26074@htj.dyndns.org>
On 11-03-01 03:01 AM, Tejun Heo wrote:
..
> I think that's determined by drivers/scsi/sr.h::SR_TIMEOUT which is
> hardcoded to be 30 seconds. Maybe it's better to move it to use the
> block parameter. Anyways, the drive actually takes longer than 30secs
> to recognize the media?
That slow behaviour is not uncommon, especially as drives struggle
to recognize various forms of copy-protected media (DVD-Video).
A longer default, or tuneable timeout, would help.
Cheers
next prev parent reply other threads:[~2011-03-01 13:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-28 21:36 NEC ND-4550A problems reading DVD-R Krzysztof Halasa
2011-03-01 8:01 ` Tejun Heo
2011-03-01 10:01 ` Krzysztof Halasa
2011-03-01 13:48 ` Mark Lord [this message]
2011-03-01 15:47 ` Stephen Clark
2011-03-04 11:07 ` Tejun Heo
2011-03-04 14:09 ` Stephen Clark
2011-03-04 22:16 ` Jens Axboe
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